Oil Pan Installation

WARNING: This page is about a different variant/trim than selected.

Fig 1: Illustrating Proper Sealer Application

Courtesy of GENERAL MOTORS CORP.

Apply sealer GM P/N 12378521, (Canadian P/N 88901148) or the equivalent to both sides of the crankshaft rear main bearing cap (1).

Fig 2: View Of Oil Pan & Bolts

Courtesy of GENERAL MOTORS CORP.

Install the oil pan gasket.
Install the oil pan.

IMPORTANT: Replace the two rear bolts that bolt the oil pan to the engine block, next to the rear main seal, with two NEW bolts (P/N 11515756). Prior to installing the new bolts, apply threadlocker G/M P/N 12345382 (Canadian P/N 10953489) to the threads.

Install the oil pan bolts.

Fig 3: View Of Rear Oil Seal

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

Prior to tightening bolts, ensure that the oil pan boss sits flush with the engine block boss (1).
Tighten: Tighten the oil pan bolts to 25 N.m (18 lb ft).

Fig 4: View Of Oil Pan & Bolts

Courtesy of GENERAL MOTORS CORP.

Install the oil pan side bolts.
Tighten: Tighten the oil pan side bolts to 50 N.m (37 lb ft).

Fig 5: View Of Rear Oil Seal

Courtesy of GENERAL MOTORS CORP.

After tightening bolts, recheck to ensure that the oil pan boss sits flush with the engine block boss (1).

Fig 6: View Of Oil Pan Drain Plug

Courtesy of GENERAL MOTORS CORP.

Install the oil pan drain plug.
Tighten: Tighten the oil pan drain to 25 N.m (18 lb ft).